Sony Digital betacam DVW-970, Руководство по эксплуатации

Страница: 57 / 162

57
Adjusting the Black Balance and the White Balance
Cha
p
te
r 4
Ad
jus
tme
nt
s
an
d Set
tings
f
o
r Re
c
o
rding
The black balance adjustment ends in a few seconds
with the message “ABB:OK” and the adjustment value
is automatically stored in memory.
• During the black balance adjustment, the iris is
automatically closed.
• During the black balance adjustment, the gain selection
circuit is automatically activated so you may see
flickering on the viewfinder screen, but this is not a fault.
If automatic black balance adjustment
cannot be made
If the black balance adjustment cannot be completed
normally, an error message will appear for about 3 seconds
on the viewfinder screen (in display mode 2 or 3).
Possible messages are listed below.
If any of the above error messages is displayed, retry the
black balance adjustment.
Keep pushing the AUTO W/B BAL to BLK until
“-BLACK SET-” appears after “-BLACK BALANCE-”
appears. If the error message occurs again, contact your
Sony service representative.
If the lens cable is not firmly connected to the LENS
connector, it may not be possible to adjust the lens iris. If
this happens, the black balance will be incorrect.
Black balance memory
Values stored in memory are held until the black balance is
next adjusted.
4-1-2 Adjusting the White Balance
To automatically adjust the white balance
When you make automatic white balance adjustment, the
adjustment value obtained is saved in memory.
Proceed as follows:
1
Set the switches and selectors as shown in the figure
below.
If the setting of the GAIN selector or WHITE BAL
switch is changed, a message reporting the new setting
position appears for about 3 seconds in the setting
change and adjustment progress message display area
of the viewfinder screen.
2
Set the FILTER selector to suit the lighting conditions
as follows:
Notes
Black balance adjustment error messages
Error message Meaning
ABB : NG
IRIS NOT
CLOSED The lens iris did not close; adjustment
was impossible.
ABB : NG
TIME LIMIT Adjustment could not be completed
within the standard number of attempts.
ABB : NG
R (or G or B) :
OVERFLOW The difference between the reference
value and the current value is so great
that it exceeds the range. Adjustment
was impossible.
Note
FILTER selector (outer knob) setting and CC-filter
selection
FILTER selector (outer
knob) setting CC filter
A Cross filter
B 3200K
C 4300K
D 6300K
FILTER selector (inner knob) setting and ND-filter
selection
FILTER selector
(inner knob) setting ND filter
1 Clear
2 1
/
4
ND
3
1
/
16
ND
4 1
/
64
ND
1) White balance setting values are stored in memory B only
when the WHITE SWITCH <B> item is set to “MEM” on
the FUNCTION 2 page of the OPERATION menu.
FILTER selector (step 2)
GAIN selector: Set as low as
possible.
OUTPUT/DCC switch:
CAM
WHITE BAL switch:
A or B
1)